R＆D of lead-glass ring-imaging Cherenkov detector

铅玻璃环形成像切伦科夫探测器的研发

• 批准号: 11440086
• 负责人: KOBAYASHI Takashi
• 金额: $ 6.59万
• 依托单位: High Energy Accelerator research Organization
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11440086/
• 关键词: Neutrino; Mass spectrometer; Neutrino oscillation; Electron; Lmaging; Image intensifier; CCD; イメージインテシファイア; 電磁カロリメータ; イメージング検出器; チェレンコフ光; シンチレーション光; ニュートリノ質量; 鉛ガラス; リングイメージ; ハイブリッドPMT

First, we tried to detect electron neutrino interaction by using lead-glass detector in the current on-going neutrino oscillation experiment K2K. In the K2K experiment, the ve component is only 1% of the main component of vμ. In this study we established to detect small amont of ve interaction in large background. Also we demonstrated the limitation of convension electromagnetic Calometer in a separated function detector for the ve detection purpose.For the future high-sensitivity imaging ne detector, there might be two possible options ; Cherenkov imaging detector and scintillation imaging detector. The difference between these two is the light source, Cherenkov light or scintillation right. The former one collect the light by spherical mirror and the resulting image of a particle is a ring on the screen. The latter on collect the light by optical lense and a image of particle track is on the screen. These two types of detectors are very similar and many parts/techniques are common. And both have a good potential to be a ve detector. So, we have made R＆D work, keeping the development or boty types of detectors in mind.In the first year of this Graint-in-Aid, conceptual design of the detector was done using Monte-Carlo simulation. Performance of both types of detectors are compared. In the second year, NaI scintillator block, optical lense and Image Intensifier tube were purchased ahd prototype detector was constructed. And basid performance were investigated. In the last year, in cooperation with Kyoto University, we made cosmic-ray measurement and beam test. In the cosmic-ray measurement, clear track images of stopping muons with associated decay electrons were recorded. Currently, analysis of the cosmic-ray and beam iea is underway to evaluate the performance of the detector quiantitatively.

首先，我们尝试通过在当前正在进行的神经元振荡实验中使用铅玻璃检测器来检测电子神经元相互作用。在K2K实验中，VE成分仅是Vμ的主要成分的1％。在这项研究中，我们确定了在较大的背景下的相互作用中检测到的小小的。我们还证明了在单独的函数探测器中，在VE检测目的中，对流电磁层的局限性。对于未来的高敏化成像NE探测器，可能有两种可能的选项。 Cherenkov成像检测器和闪烁成像检测器。这两个之间的区别是光源，切伦科夫的光或闪烁。前一个通过球形镜收集光，粒子的产生图像是屏幕上的环。后者通过光学角度收集光，屏幕上的粒子轨迹图像。这两种类型的探测器非常相似，许多零件/技术很常见。两者都有良好的潜力成为VE检测器。因此，我们已经进行了研发工作，牢记探测器的开发或怪异类型。比较两种探测器的性能。在第二年，构建了NAI闪烁体块，光晶状体和图像增强器管的构造。研究了基本的表现。去年，与京都大学合作，我们进行了宇宙射线测量和梁测试。在宇宙射线测量中，记录了停止使用相关衰减电子的雄臂的清晰轨道图像。当前，正在进行对宇宙射线和束IEA的分析，以非常接近评估检测器的性能。

项目成果

K2K Collaboration: ""Detection of Accelerator-Produced Neutrinos at a Distance of 250km""Physics Letters. B511. 178-184 (2001)

K2K 合作：“在 250 公里距离处检测加速器产生的中微子”《物理快报》。

T.Kobayashi: "Present and future of the Japanese long baseline neutrino oscillation experiment"Proceedings of the 2nd International Workshop on Neutrino Oscillation and Their Origin. 152-161 (2001)

T.Kobayashi：“日本长基线中微子振荡实验的现在和未来”第二届中微子振荡及其起源国际研讨会论文集。

T.Kobayashi: ""Present and future of the Japanese long baseline neutrino oscillation experiment""Proceedings of the 2nd International Workshop on Neutrino Oscillation and Their Origin. 152-161 (2001)

T.Kobayashi：“日本长基线中微子振荡实验的现在和未来”第二届中微子振荡及其起源国际研讨会论文集。

小林隆,長谷川琢也 他: "TAUNEUTRINOS FAVORED OVER STERILE NEUTRINOS IN ATMOSPHERIC MUON NEUTRINO OSCILLATIONS"Physical Review Letters. 85. 3999-4003 (2000)

Takashi Kobayashi、Takuy​​a Hasekawa 等人：“在大气 MUON 中微子振荡中，TAUNEUTRINOS 优于 STERILE NEUTRINOS”《物理评论快报》85. 3999-4003 (2000)。

K2K collaboration: "Detection of Accelerator-Produced Neutrinos at a Distance of 250km"Phys. Lett. B511. 178-184 (2001)

K2K 合作：“在 250 公里距离处检测加速器产生的中微子”Phys。